Online PHP editor | refs for jccU2

<?php function array_keys_exists($array, ...$keys) { foreach($keys as $key) { if(!array_key_exists($key, $array)) { return false; } } return true; } $_REQUEST['wert1'] = "false"; $_REQUEST['wert2'] = "false"; $_REQUEST['wert3'] = "0"; var_dump((bool) $_REQUEST['wert1'] || $_REQUEST['wert2'] || $_REQUEST['wert3']); var_dump((bool) array_keys_exists($_REQUEST, 'wert1', 'wert2', 'wert3'));